agenttesla | cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101

General

Target

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
Size

501KB
MD5

3796b911951b048081a1a7829465f85b
SHA1

d07fb3c24272525dcb467445e3ddacf5072938a9
SHA256

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101
SHA512

9f549d4f1b156e9fd129950f69583f3a9156bd40230b6fb00d68a42c35fc8f7af6b48a7bf08d6fee254667a5e3cb496cc11afafe39d21b1b760c1be21b62c467
SSDEEP

12288:y2ZyhvUi2iNPmCEdbrom61QUP7faoMNp7sklOYT:pghUi1lEdbrKzyJg+T

Score

10^/10

agenttesla discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
us2.smtp.mailhostbox.com
Port:
587
Username:
[email protected]
Password:
project2021blessing

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Agenttesla family
agenttesla

AgentTesla payload 1 IoCs

Processes:

resource	yara_rule
behavioral2/memory/1428-11-0x0000000000400000-0x000000000043C000-memory.dmp	family_agenttesla

Drops file in Drivers directory 1 IoCs

Processes:

RegSvcs.exe

description	ioc	Process
File opened for modification	C:\Windows\system32\drivers\etc\hosts	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Processes:

RegSvcs.exe

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-2045521122-590294423-3465680274-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\NXLun = "C:\\Users\\Admin\\AppData\\Roaming\\NXLun\\NXLun.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

Processes:

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe

description	pid	Process	procid_target
PID 5032 set thread context of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

Processes:

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exeRegSvcs.exe

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 4 IoCs

Processes:

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exeRegSvcs.exe

pid	Process
5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
1428	RegSvcs.exe
1428	RegSvcs.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

Processes:

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exeRegSvcs.exe

description	pid	Process
Token: SeDebugPrivilege	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
Token: SeDebugPrivilege	1428	RegSvcs.exe

Suspicious use of WriteProcessMemory 8 IoCs

Processes:

cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe

description	pid	Process	procid_target
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100
PID 5032 wrote to memory of 1428	5032	cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe	100

C:\Users\Admin\AppData\Local\Temp\cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe
"C:\Users\Admin\AppData\Local\Temp\cf87855e0b967b5902a50932cfeab8aebefef4034c9f4bde31df448e28455101.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5032
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"
  2⤵
  - Drops file in Drivers directory
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  PID:1428

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

memory/1428-11-0x0000000000400000-0x000000000043C000-memory.dmp

Filesize
240KB

Download
memory/1428-19-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1428-18-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1428-17-0x0000000005E20000-0x0000000005E86000-memory.dmp

Filesize
408KB

Download
memory/1428-16-0x0000000005080000-0x0000000005098000-memory.dmp

Filesize
96KB

Download
memory/1428-15-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/1428-13-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/5032-4-0x0000000005310000-0x000000000531A000-memory.dmp

Filesize
40KB

Download
memory/5032-8-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/5032-9-0x0000000006070000-0x000000000610C000-memory.dmp

Filesize
624KB

Download
memory/5032-10-0x0000000006270000-0x00000000062D0000-memory.dmp

Filesize
384KB

Download
memory/5032-7-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

Filesize
4KB

Download
memory/5032-6-0x0000000005650000-0x000000000565E000-memory.dmp

Filesize
56KB

Download
memory/5032-14-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/5032-5-0x0000000074EE0000-0x0000000075690000-memory.dmp

Filesize
7.7MB

Download
memory/5032-0-0x0000000074EEE000-0x0000000074EEF000-memory.dmp

Filesize
4KB

Download
memory/5032-3-0x0000000005250000-0x00000000052E2000-memory.dmp

Filesize
584KB

Download
memory/5032-2-0x0000000005720000-0x0000000005CC4000-memory.dmp

Filesize
5.6MB

Download
memory/5032-1-0x00000000007D0000-0x0000000000854000-memory.dmp

Filesize
528KB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads